I am using ctwm 4.0.3-post.
I wonder whether anyone has ideas about this. I use the ctwm window manager with 12 virtual desktops on Fedora 32. The computer has recently frozen twice while videos were being displayed. In each case, when it happened I could do nothing with mouse and/or keyboard, and could not connect or ping from another machine on our home network. The only thing to do was reboot using the power off/on button. In both cases a video was being shown in a video. I have often watched online video lectures including video presentations in the past without such crashes. However, a few days ago I acquired Logitech usb-based headphones + mic (headset Model H390), to replace use of speakers or headphones plugged into the audio-out socket, using old-style phono-plug, and mic in a webcam (logitech HD 720P). I don't know whether that change could be related to the crash. On the first occasion (last night) I was using firefox to watch an online video lecture, in which video recordings were presented (on research in robotics). On the second occasion, earlier today, I was using the linux zoom utility, connected to a remote seminar in which the speaker was presenting a video demonstrating mobile robots. So both occasions involved video in video. I don't know if that could be part of the explanation for the crashes. In both cases, my screen (including mouse pointer) froze completely and no combination of keyboard keys or mouse movement/clicks produced any effect. I also could not connect to the frozen machine, and could not log into it, or ping to it, from another machine on our home network. So I had to use the power button on the frozen PC to power off and then reboot. The second crash, using zoom, removed my suspicion that the first crash was due to a bug in firefox, which had very recently updated itself. I don't use a browser to launch zoom as I've installed zoom for linux. However, in both cases firefox was running on the machine with many windows and many tabs. In the second case, I was using zoom to connect to a seminar in which the speaker was talking about research in his robotics group. The crash occurred while he was displaying a video and talking about it. Again everything froze and I had to use the power button to shut the machine down. I was then able to reboot, restart fedora running ctwm, and reconnect to the zoom seminar, which worked as expected thereafter. Any ideas about the cause(s) of the crashes? Thanks. Aaron http://www.cs.bham.ac.uk/~axs
